四极的

The least norm solutions of symmetric and skew antisymmetric matrix equations (A~TXA, XA — YAD)=(D, 0)are also considered. 3. The least-squares solutions and the least norm solutions of the quaternion matrix equations AX = B and XD = E are studied by using

借助四元数的复表示方法，研究四元数矩阵方程组AX=B，XD=E的最小二乘问题和极小范数解的问题，并对主子阵约束下的方程组的解进行了讨论，得到了它们的显式表示。

The result also showed that return treatment is better than taken treatment within different treatments. 4. According to the experiment when the plant was harvested(In March 25th,2009), it was found that the rape with NPK treatment,especially with NPK-T treatment in Quaternary red soil and in granitization red soil, grew abnormality or dead in the centre of district(80%),which yield was extremely low,but had some to the remaining(20%) close to the cement ridge.Among the three types of parent material,eighteen districts,Dischaemum Schreb of gramineae plants could only grow in granitization red soil with NPK treatment,and the other sixteen districts were little or even not.The rape planted in Quaternary red soil with NPK treatment got disease especially in the centre of the district.

其次是M处理，CK最低。3、三种母质种植油菜均表现为：归还处理好于带走处理；4、据试验收产时（2009年3月25日）发现：四纪红土和花岗岩二种母质的NPK处理的油菜除靠近水泥梗边行长有部分油菜外（占小区面积20%），小区中间（占小区面积80%）的油菜生长不正常或死亡，产量极低；三种母质共18个小区，只有花岗岩母质的NPK处理长有禾本科植物马唐草，其余16个小区很少或没有；四纪红土NPK处理油菜病害严重。

The abstract result contains several concrete results in the literature and can also be used to deal with some new cases for resonant differential equations.In the introduction, we briefly introduce the development process of the variational methods. In Chapter 2, we list some basic knowledges refering to the variational methods, including the Sobobev space,—△ operator, the weak solution and the minimizing sequence methods and some minimax theorems. In Chapter 3, we introduce the research process of Hamiltonian system of second order and the semilinear elliptic problems, using the methods introduced previously. In Chapter 4, we prove the main theorem of the thesis, and apply it to the problems in the previous Chapter, and can also be applied to some new resonant cases.

在前言中，简要介绍了变分法的产生、发展过程，在第二章中我们介绍了有关变分法的一些基本知识，包括Sobolev空间，—△算子，弱解，极小化序列方法和一些极小极大定理，在第三章中我们介绍了非线性项有界或满足次线性条件，以及它满足推广的Ahmad-Lazer-Paul条件时，二阶Hamiltonian系统和半线性椭圆问题的研究历程，最后在第四章中我们证明了本论文的主要定理，并把它应用到第三章的问题中，使得前面的几种共振的情形都可以统一到这个抽象的结果中。

Result: Quadruplet pregnancy was an extremely rare disease, accompanied with multiple complications during the perinatal period. Its major clinical feature was excessly large uterine, the definitive diagnosis of quadruplet pregnancy depended on ultrasonography. With reason able prenatal examination and prevention from the multiple complications during the perinatal period, the quadruplet pregnancy could had a similar outcome as single birth.

结果：四胎妊娠的发生率极低，围产期并发症多，临床表现主要为子宫过度增大，明确诊断主要依靠超声通过合理的产前监测和对围产期并发症的防治，四胎妊娠仍能取得和单胎妊娠一样的良好结局。

In the last of this dissertation, we give necessary and sufficient conditions for the existence of and the expressions of perpositive semidefinite solutions and bipositive semidefinite solutions to some systems of quaternion matrix equations.

给出了某些四元数矩阵方程组有广亚半正定解，双半正定解的充要条件及其表达公式；研究了矩阵方程组的最小二乘解，极小范数的最小二乘解，在某些约束条件下的最小二乘解和极小范数的最小二乘解，给出了其有这些解的充要条件及其表达公式。

The analysis of correlation indicated that tobacco breeding with higher potassium content has the characteristics of higher stalk height, wider stalk circumference, longer leaf and more leaf number comparatively. The correlations between potassium content and nicotin among top, middle and bottom tobacco leaves were all negative. The correlation among potassium content and malondialdehyde,superoxide dismutase, conductance ratio; and protein, solubility sugar, chlorophyl and free water/bondage water were all attained marked level, however, the essence of correlation was different: the former was negative but the latter was positive. 4.The analysis of heterosis demonstrated there were different degree heterosis in the potassium content of tobacco leaf and other correlated characters, including agriculture, physiology and biochemistry.

相关分析表明，烟叶钾含量性状与株高、茎围和最大叶长的相关性达到了显著和极显著的水平，与叶数的相关虽未达到显著水平，但相关程度相对较高；烟叶钾含量与烟碱在上、中、下三部位叶之间均呈负相关关系，中部叶烟碱与烟叶钾含量的相关达到了极显著水平；烟叶钾含量性状与丙二醛、SOD和电导率以及与蛋白质、可溶性糖、叶绿素和自由水/束缚水之间的相关性均未达显著水平，但相关性质不同，烟叶钾含量性状与前三者之间表现负相关关系，而与后四者之间呈正相关关系；4。

A very wide wide beautifully decorated hall, usually only be seen in the cathedral painted glass, but here as lighting; The number of home to the rich and others boast crystal chandeliers, here are four in number, and only illumination; Century painter Langfenai value of a 10,000 meter gold paintings Surprisingly, in the dorsal horn can be seen on the walls, although not authentic, but the Duke of your family should be absolutely no fake.

极宽极阔的大厅装饰精美，平时只有在大教堂才能见到的彩绘玻璃，在这里只不过做为采光用；多少富豪之家用以向旁人夸耀的水晶吊灯，在这里就有四盏之多，而且只是照明；世纪大画家米开朗芬奇价值万金的画作，居然在背角的墙壁上可以见到，虽然不知真伪，但公爵府上应该绝对没有赝品。

At last, the frequency spectrum analysis shows that the four-winged chaotic attractor has extremely wide frequency bandwidth compared with that of the Lorenz system and Chua circuit, which is important in practical applications in communication encryption etc.

最后，通过比较该四翼混沌吸引子的系统、Lorenz系统、Chua氏电路等混沌信号的频谱发现，四翼混沌吸引子的系统信号具有极宽的频谱带宽，该特性在通讯加密等工程应用中具有重要价值。

Mr. I and plans for half a year want a BB but have not been pregnant this month to the hospital for an examination has been found pregnant as a result of six months but were not pregnant so there is no care to protect their early physical illness is as follows吃了药specific menstruation is the last time I was on the 4th to January 2 (can not recall the specific date that the last two days anyway) cycle for 29-32 days as a result of Kim Jong-January 16 Doctor hospital was opened two days of ofloxacin吊针two bottles a day and oral inflammation hundred net service for three days or not some of the symptoms also had oral Lowe four days after 28 No. Because when cooking large half fingernails cut off after two days due to inflammation of eating cefradine BB always wanted as a result of another failed as Friend introduction has been gradually taking ginseng cream until February 3鹿胎feeling some discomfort to the hospital post-mortem examination urine was very weakly positive on the drug problem at that time ask the director of hospital doctors when she helped me just as long as the operator told me to eat before February 5 in medicine are not all right to ask whether she was in the comfort me?

我和先生计划了半年想要个BB可是一直没有怀上这个月去医院检查验出已怀孕了可是由于大半年都没有怀上所以就没有小心保护自己身体早期因病吃了药具体情形如下我最后一次月经是一月二号还是四号来(具体日期记不起了反正就是这两天)周期为29至32天一月十六号由于泌感到医院看病医生开了两天的氧氟沙星吊针每天两瓶及口服药百炎净服了三天未还是有些症状又口服了洛威四天之后二十八号由于做饭时切掉大半块手指甲后由于发炎吃了两天的头孢拉定另外由于一直想要BB未果经朋友介绍一直在陆续服用人参鹿胎膏直到二月三号感觉有些不适去医院检查验尿呈极弱阳性当时就服药问题问了医院的主任医生当时她帮我算了算告诉我只要在二月五号前吃的药都没什么大碍的请问她是否在安慰我呢？

In Chapter 5 and 6, a suite of calculation method of branch model and their parameters, which can fully consider the effects of various spatial harmonics, is worked out. In the last chapter, the calculation method of the asynchronous starting characteristics of the new type machines at quasi-stationary state have been discussed in details.

第四章则针对变极凸极同步电机的特点，通过对其气隙磁场谐波性质及其作用的分析，得出了若干具有理论和实用价值的结论，在此基础上，第五、六两章则提出并建立了一套能够充分考虑各种性质空间谐波影响的支路模型及其参数计算方法。

By the time of its fall, most of the prisoners were writers who had written against the corruptions of the government.

到它被攻陷的时候，里面多数的犯人是写了反对政府贪污文章的作家。

The most obvious variation to ovum morphological character was that the color was changed from light green to sepiaceous in embryonic development, and all the ovums were almost hatched after 96h.

在胚胎发育过程中卵的形态特征最明显的变化是颜色从淡绿到深褐色，卵在发育96h后卵基本全部孵化。